<html>
<head>
<script>
function getMaterial(str){
	if (str==""){
	  document.getElementById("materialCode").innerHTML="";
	  return;
	 }
	if (window.XMLHttpRequest){// code for IE7+, Firefox, Chrome, Opera, Safari
	  xmlhttp=new XMLHttpRequest();
	}else{// code for IE6, IE5
	  xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
	}
	xmlhttp.onreadystatechange=function(){
	if (xmlhttp.readyState==4 && xmlhttp.status==200){
	    document.getElementById("materialCode").innerHTML=xmlhttp.responseText;
	    }
	}
	xmlhttp.open("GET","getMaterial.php?q="+str,true);
	xmlhttp.send();
}
</script>
</head>
<body>

<form>
<select>

<select id="materialCode" onkeyup="getMaterial(this.value)"/>

</select>
</form>

</body>
</html> 
